ETA 900 model CE part number?

[markr]

My oiler is pointing to the part I need the part number for.  That hole in it is supposed to have a pin in it that changes the date wheel.  This is a Benrus day and date pointer.  Please help.

[AndyGSi]

All you need is a piece of brass wire to make the pin.

[Geotex]

Here is the data sheet with the Benrus part name and number for the components that are unique to the calendar works on the CE and CK movements. 

Benrus CE Calendar Parts.pdf

[markr]

Thanks Geotex that is just what is needed but I'm still a bit confused because the photo is a bit fuzzy.  One part has 2 numbers 556 & 560. Are they 2 different parts?  Even with the excellent help I'm still confused on what part I need.

[Geotex]

It seems to be a composite part that fills the role of two of the parts from the standard Swiss numbering system so they list both numbers for it. You see that sometimes. The Benrus price list showed it as a single item to purchase. 

I'm not sure you are going to find a source just for that part, so as mentioned above you might try to repair it by replacing the missing pin portion, or you can grab it from a parts donor movement. I pulled that wheel from a parts movement this evening to see what it looks like (see pictures) and it shows signs that someone has already done some work on this one to either secure or replace the stud, so maybe that was a common problem.  

Are you taking pictures and considering posting a walk-through? This is a commonly-seen complication in used watch listings but there isn't a lot of information on it. The quickset date function triggered by pushing the stem IN is unusual, and I have the Benrus CE on my list to tackle after I get a bit more experience with calendar mechanisms. 

[markr]

You have been a great help. I don't think I'm experienced enough to do a walk-through but parts 576 and 577 might look the same but definitely aren't.

[AndyGSi]

6 hours ago, markr said:

Thanks Geotex that is just what is needed but I'm still a bit confused because the photo is a bit fuzzy.  One part has 2 numbers 556 & 560. Are they 2 different parts?  Even with the excellent help I'm still confused on what part I need.

The Part #556-560 is a single part.

https://www.ebay.com/itm/125640144860